Flight Time System for a High Speed Impact Printer
Original Publication Date: 1984-Sep-01
Included in the Prior Art Database: 2005-Feb-05
A flight time system for a high speed impact printer reliably measures and records the mechanical characteristics of the print mechanism and provides delay values allowing the flight time to be manually or automatically adjusted. This procedure allows the customers themselves to measure flight time by attaching a flight time bar and running a diagnostic program. As shown in Fig. 1, the face of the flight time bar 11 is curved to eliminate out-of-flatness errors on the strip and out-of-square conditions on the hammer face. A higher preload on the hammer return spring 12 reduces push rod 13 friction variations while closer process controls reduce push rod 13 eccentricity.